Hub



FIG. 1 is a front perspective view of a hub showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top elevational view thereof;

FIG. 5 is a bottom elevational view thereof; and,

FIG. 6 is a left side elevational view thereof, the right side elevational view thereof being the mirror image of FIG. 6.

The broken line representations of portions of the hub in FIGS. 1-6 are shown for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a hub, as shown and described. 